CAJ | 학술논문

结合大安沟隧道施工过程，对该隧道施工进行现场监测与分析，结果表明：（1）隧道开挖支护后，裂隙较发育，存在有岩层位移、介质失稳等潜在危险，应当及时进行支护增强；（2）隧道周边收敛呈现不规整性，在监测初期呈现扩张趋势，而逐渐转入收缩阶段，并且之后不会再出现明显的扩张现象；（3）拱顶沉降呈现“抛物线”型规律，沉降阶段划分为迅速沉降阶段和缓和逐渐趋于稳定阶段。该研究结果，不仅为浅埋隧道支护设计提供了有力依据，还对隧道施工起到了一定的指导作用。
결합대안구수도시공과정，대해수도시공진행현장감측여분석，결과표명：（1）수도개알지호후，렬극교발육，존재유암층위이、개질실은등잠재위험，응당급시진행지호증강；（2）수도주변수렴정현불규정성，재감측초기정현확장추세，이축점전입수축계단，병차지후불회재출현명현적확장현상；（3）공정침강정현“포물선”형규률，침강계단화분위신속침강계단화완화축점추우은정계단。해연구결과，불부위천매수도지호설계제공료유력의거，환대수도시공기도료일정적지도작용。
Combined with the Da’an tunnel construction process, the tunnel construction site monitoring and analysis, and the results show that:(1)After the tunnel excavation and support, fracture is developed, there is rock displacement, instability and other potentially dangerous medium, enhanced support should be timely;(2)Tunneling convergence presents irregularity, showing expansion in the early trend monitoring, and gradually into the contraction phase, and thereafter no longer significant expansion phenomenon;(3)Tunnel crown settlement presents"parabolic"type law, and the phases of crown settlement divided into rapid subsidence stage and ease gradually stabilized stage. The findings not only provide a strong basis for Shallow tunnel support design but also the construction of the tunnel has played a guiding role.